I don't know the difference, except for more surface area. But I would never buy it again, ok as a fan, also as a humidifier but nothing more. If you're hoping for cooling, then I'm afraid I have to say it's complete rubbish. It cools a little, if at all, if you fill it with really ice-cold water and then throw in ice cubes and the cooler. Don't fill with too much water either. Relatively difficult to drain but works with a little practice. It is also relatively loud and the night mode is a joke as the blower simply switches on, then switches off and on again. So there is no constant sound, only at the lowest blower level. We have it in the children's room and the room is about 13m2 in size, so it should be enough without any problems, but that's just not the case. I was really hoping for a lot more from the product but was really disappointed. Of course, it could also be that I simply expected too much ;-). Conclusion: Unfortunately I can't recommend buying it!